51.87% is the change from 401 to 609
Calculation steps:
[( 609 - 401 ) ÷ 401] x 100 = 51.87%
Formula
Percentage change = [(609 - 401) / 401] x 100
Subtract the new number by the original number
609 - 401 = 208
208 ÷ 401 = 0.5187032418952618
0.5187032418952618 x 100 = 51.87%